and, tackling the energy question. human rights groups have condemned a video posted on the internet which appears to show syrian rebels of executing captured government soldiers. amnesty international says if confirmed, it constitutes a war crime. we are asking whether this is something new. >> it has happened before. but now it is becoming more and more obvious that the rebels are committing killings like the regime, and at the same level, both of them. it is just days before a big conference in doha where the opposition is asked to unified under one group, in order to bid but to lead the rebels on the ground, because there's a big discrepancy between the political leadership and the rebels on the ground who are fighting, in their aspirations, in the way they are conducting their rebellion. >> are they out of control? who is funding these groups? whether it coming from -- where are they coming from? clerk this is a rebel informed by several groups. this is not the regular army. it happened in many revolutions, review